Radio frequency modulator



FIG. 1 is a perspective view;

FIG. 2 is another perspective view;

FIG. 3 is a top view;

FIG. 4 is a bottom view.

FIG. 5 is a front elevational view;

FIG. 6 is a rear elevational view; and,

FIG. 7 is a left elevational view. 

CLAIM The ornamental design for a radio frequency modulator, as shown and described. 